<!DOCTYPE html>
<html>
<head>
<style>
iframe
{
margin-left:-250px;
margin-top:-670px;

/*width:250px;
height:600px;*/
overflow:hidden;
}
</style>
</head>
<body>
<iframe src="http://www.istra.hr/hr/atrakcije-i-aktivnosti/kalendar-dogadanja" width="680" height="2500" scrolling="no">
</iframe>

</body>
</html>